CN102177542B - 能量保留多通道音频编码 - Google Patents
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- CN102177542B CN102177542B CN2009801401393A CN200980140139A CN102177542B CN 102177542 B CN102177542 B CN 102177542B CN 2009801401393 A CN2009801401393 A CN 2009801401393A CN 200980140139 A CN200980140139 A CN 200980140139A CN 102177542 B CN102177542 B CN 102177542B
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Computational Linguistics (AREA)
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- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10440408P | 2008-10-10 | 2008-10-10 | |
| US61/104,404 | 2008-10-10 | ||
| PCT/SE2009/051071 WO2010042024A1 (en) | 2008-10-10 | 2009-09-25 | Energy conservative multi-channel audio coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102177542A CN102177542A (zh) | 2011-09-07 |
| CN102177542B true CN102177542B (zh) | 2013-01-09 |
Family
ID=42100797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801401393A Expired - Fee Related CN102177542B (zh) | 2008-10-10 | 2009-09-25 | 能量保留多通道音频编码 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9330671B2 (de) |
| EP (1) | EP2345027B1 (de) |
| JP (1) | JP5608660B2 (de) |
| CN (1) | CN102177542B (de) |
| WO (1) | WO2010042024A1 (de) |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102177542B (zh) * | 2008-10-10 | 2013-01-09 | 艾利森电话股份有限公司 | 能量保留多通道音频编码 |
| EP2395504B1 (de) * | 2009-02-13 | 2013-09-18 | Huawei Technologies Co., Ltd. | Stereokodierungsverfahren und -vorrichtung |
| US9082395B2 (en) * | 2009-03-17 | 2015-07-14 | Dolby International Ab | Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding |
| US20100324915A1 (en) * | 2009-06-23 | 2010-12-23 | Electronic And Telecommunications Research Institute | Encoding and decoding apparatuses for high quality multi-channel audio codec |
| US9838784B2 (en) | 2009-12-02 | 2017-12-05 | Knowles Electronics, Llc | Directional audio capture |
| CN102157151B (zh) * | 2010-02-11 | 2012-10-03 | 华为技术有限公司 | 一种多声道信号编码方法、解码方法、装置和系统 |
| BR112012026324B1 (pt) * | 2010-04-13 | 2021-08-17 | Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E. V | Codificador de aúdio ou vídeo, decodificador de aúdio ou vídeo e métodos relacionados para o processamento do sinal de aúdio ou vídeo de múltiplos canais usando uma direção de previsão variável |
| US8798290B1 (en) | 2010-04-21 | 2014-08-05 | Audience, Inc. | Systems and methods for adaptive signal equalization |
| US9558755B1 (en) | 2010-05-20 | 2017-01-31 | Knowles Electronics, Llc | Noise suppression assisted automatic speech recognition |
| CN102280107B (zh) * | 2010-06-10 | 2013-01-23 | 华为技术有限公司 | 边带残差信号生成方法及装置 |
| EP2586025A4 (de) * | 2010-07-20 | 2015-03-11 | Huawei Tech Co Ltd | Tonsignalsynthesizer |
| US9767822B2 (en) * | 2011-02-07 | 2017-09-19 | Qualcomm Incorporated | Devices for encoding and decoding a watermarked signal |
| AU2011358654B2 (en) * | 2011-02-09 | 2017-01-05 | Telefonaktiebolaget L M Ericsson (Publ) | Efficient encoding/decoding of audio signals |
| EP2681734B1 (de) * | 2011-03-04 | 2017-06-21 | Telefonaktiebolaget LM Ericsson (publ) | Verstärkungskorrektur nach quantisierung bei der audiocodierung |
| NO2669468T3 (de) * | 2011-05-11 | 2018-06-02 | ||
| WO2013188562A2 (en) * | 2012-06-12 | 2013-12-19 | Audience, Inc. | Bandwidth extension via constrained synthesis |
| KR101903664B1 (ko) | 2012-08-10 | 2018-11-22 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 파라미터 오디오 오브젝트 코딩을 위한 잔류 개념을 이용하는 인코더, 디코더, 시스템 및 방법 |
| JP6065452B2 (ja) | 2012-08-14 | 2017-01-25 | 富士通株式会社 | データ埋め込み装置及び方法、データ抽出装置及び方法、並びにプログラム |
| WO2014046916A1 (en) | 2012-09-21 | 2014-03-27 | Dolby Laboratories Licensing Corporation | Layered approach to spatial audio coding |
| EP2757559A1 (de) * | 2013-01-22 | 2014-07-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur Codierung räumlicher Audioobjekte mittels versteckter Objekte zur Signalmixmanipulierung |
| US9336791B2 (en) * | 2013-01-24 | 2016-05-10 | Google Inc. | Rearrangement and rate allocation for compressing multichannel audio |
| JP6146069B2 (ja) * | 2013-03-18 | 2017-06-14 | 富士通株式会社 | データ埋め込み装置及び方法、データ抽出装置及び方法、並びにプログラム |
| RU2625444C2 (ru) | 2013-04-05 | 2017-07-13 | Долби Интернэшнл Аб | Система обработки аудио |
| EP3014609B1 (de) | 2013-06-27 | 2017-09-27 | Dolby Laboratories Licensing Corporation | Bitstromsyntax zur räumlichen sprachcodierung |
| CN108198564B (zh) | 2013-07-01 | 2021-02-26 | 华为技术有限公司 | 信号编码和解码方法以及设备 |
| EP2838086A1 (de) | 2013-07-22 | 2015-02-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Reduktion von Kammfilterartefakten in einem Mehrkanal-Downmix mit adaptivem Phasenabgleich |
| EP2830051A3 (de) * | 2013-07-22 | 2015-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiocodierer, Audiodecodierer, Verfahren und Computerprogramm mit gemeinsamen codierten Restsignalen |
| EP3293734B1 (de) | 2013-09-12 | 2019-05-15 | Dolby International AB | Decodierung von mehrkanal-audioinhalten |
| EP2996269A1 (de) * | 2014-09-09 | 2016-03-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiospleißkonzept |
| WO2016040885A1 (en) | 2014-09-12 | 2016-03-17 | Audience, Inc. | Systems and methods for restoration of speech components |
| RU2704266C2 (ru) | 2014-10-31 | 2019-10-25 | Долби Интернешнл Аб | Параметрическое кодирование и декодирование многоканальных аудиосигналов |
| CN107210824A (zh) | 2015-01-30 | 2017-09-26 | 美商楼氏电子有限公司 | 麦克风的环境切换 |
| CA2978075A1 (en) * | 2015-02-27 | 2016-09-01 | Auro Technologies Nv | Encoding and decoding digital data sets |
| EP3067887A1 (de) * | 2015-03-09 | 2016-09-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiocodierer zur codierung eines mehrkanalsignals und audiodecodierer zur decodierung eines codierten audiosignals |
| EP3208800A1 (de) | 2016-02-17 | 2017-08-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und verfahren zur stereoablage bei mehrkanaliger codierung |
| CN106023999B (zh) * | 2016-07-11 | 2019-06-11 | 武汉大学 | 用于提高三维音频空间参数压缩率的编解码方法及系统 |
| US10553224B2 (en) | 2017-10-03 | 2020-02-04 | Dolby Laboratories Licensing Corporation | Method and system for inter-channel coding |
| CN118038881A (zh) | 2018-04-05 | 2024-05-14 | 瑞典爱立信有限公司 | 支持生成舒适噪声的方法和设备 |
| WO2020216459A1 (en) * | 2019-04-23 | 2020-10-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method or computer program for generating an output downmix representation |
| CN111402906B (zh) * | 2020-03-06 | 2024-05-14 | 深圳前海微众银行股份有限公司 | 语音解码方法、装置、引擎及存储介质 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101124740A (zh) * | 2005-02-23 | 2008-02-13 | 艾利森电话股份有限公司 | 用于多声道音频编码的自适应位分配 |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5434948A (en) | 1989-06-15 | 1995-07-18 | British Telecommunications Public Limited Company | Polyphonic coding |
| NL9100173A (nl) | 1991-02-01 | 1992-09-01 | Philips Nv | Subbandkodeerinrichting, en een zender voorzien van de kodeerinrichting. |
| US5285498A (en) | 1992-03-02 | 1994-02-08 | At&T Bell Laboratories | Method and apparatus for coding audio signals based on perceptual model |
| DE19742655C2 (de) | 1997-09-26 | 1999-08-05 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Codieren eines zeitdiskreten Stereosignals |
| JP3571890B2 (ja) | 1997-10-23 | 2004-09-29 | 古河電気工業株式会社 | 光ファイバのコア観察装置 |
| JP3609623B2 (ja) | 1998-07-14 | 2005-01-12 | 古河電気工業株式会社 | 異径コアファイバ接続部の接続損失推定方法および異径コアファイバの接続方法 |
| SE0202159D0 (sv) * | 2001-07-10 | 2002-07-09 | Coding Technologies Sweden Ab | Efficientand scalable parametric stereo coding for low bitrate applications |
| SE523806C2 (sv) | 2002-02-26 | 2004-05-18 | Ericsson Telefon Ab L M | Förfarande och anordning för att inrikta polarisationsaxlarna hos fiberändar i två optiska polarisationsbevarande fibrer med varandra |
| KR101016251B1 (ko) | 2002-04-10 | 2011-02-25 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 스테레오 신호의 코딩 |
| ES2273216T3 (es) | 2003-02-11 | 2007-05-01 | Koninklijke Philips Electronics N.V. | Codificacion de audio. |
| US7447317B2 (en) * | 2003-10-02 | 2008-11-04 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V | Compatible multi-channel coding/decoding by weighting the downmix channel |
| SE527713C2 (sv) | 2003-12-19 | 2006-05-23 | Ericsson Telefon Ab L M | Kodning av polyfoniska signaler med villkorsbegränsade filter |
| EP3561810B1 (de) * | 2004-04-05 | 2023-03-29 | Koninklijke Philips N.V. | Verfahren zum codieren von linken und rechten audioeingangssignalen, entsprechender codierer, decodierer und computerprogrammprodukt |
| WO2005098821A2 (en) * | 2004-04-05 | 2005-10-20 | Koninklijke Philips Electronics N.V. | Multi-channel encoder |
| SE0400998D0 (sv) * | 2004-04-16 | 2004-04-16 | Cooding Technologies Sweden Ab | Method for representing multi-channel audio signals |
| SE0402652D0 (sv) | 2004-11-02 | 2004-11-02 | Coding Tech Ab | Methods for improved performance of prediction based multi- channel reconstruction |
| WO2006070751A1 (ja) | 2004-12-27 | 2006-07-06 | Matsushita Electric Industrial Co., Ltd. | 音声符号化装置および音声符号化方法 |
| US7573912B2 (en) * | 2005-02-22 | 2009-08-11 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschunng E.V. | Near-transparent or transparent multi-channel encoder/decoder scheme |
| US7751572B2 (en) | 2005-04-15 | 2010-07-06 | Dolby International Ab | Adaptive residual audio coding |
| WO2007004829A2 (en) * | 2005-06-30 | 2007-01-11 | Lg Electronics Inc. | Apparatus for encoding and decoding audio signal and method thereof |
| EP1987595B1 (de) * | 2006-02-23 | 2012-08-15 | LG Electronics Inc. | Verfahren und vorrichtung zum verarbeiten eines audiosignals |
| US8027479B2 (en) * | 2006-06-02 | 2011-09-27 | Coding Technologies Ab | Binaural multi-channel decoder in the context of non-energy conserving upmix rules |
| AU2007300810B2 (en) * | 2006-09-29 | 2010-06-17 | Lg Electronics Inc. | Methods and apparatuses for encoding and decoding object-based audio signals |
| CN101802907B (zh) * | 2007-09-19 | 2013-11-13 | 爱立信电话股份有限公司 | 多信道音频的联合增强 |
| RU2452043C2 (ru) * | 2007-10-17 | 2012-05-27 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Аудиокодирование с использованием понижающего микширования |
| EP2144230A1 (de) * | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiokodierungs-/Audiodekodierungsschema geringer Bitrate mit kaskadierten Schaltvorrichtungen |
| KR101428487B1 (ko) * | 2008-07-11 | 2014-08-08 | 삼성전자주식회사 | 멀티 채널 부호화 및 복호화 방법 및 장치 |
| CN102177542B (zh) * | 2008-10-10 | 2013-01-09 | 艾利森电话股份有限公司 | 能量保留多通道音频编码 |
-
2009
- 2009-09-25 CN CN2009801401393A patent/CN102177542B/zh not_active Expired - Fee Related
- 2009-09-25 JP JP2011530989A patent/JP5608660B2/ja not_active Expired - Fee Related
- 2009-09-25 EP EP09819478.0A patent/EP2345027B1/de not_active Not-in-force
- 2009-09-25 US US13/122,880 patent/US9330671B2/en not_active Expired - Fee Related
- 2009-09-25 WO PCT/SE2009/051071 patent/WO2010042024A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101124740A (zh) * | 2005-02-23 | 2008-02-13 | 艾利森电话股份有限公司 | 用于多声道音频编码的自适应位分配 |
Non-Patent Citations (1)
| Title |
|---|
| Gerard Hotho et al.A Backward-Compatible Multichannel Audio Codec.《IEEE Transactions on Audio,Speech,and Language Processing》.2008,第16卷(第1期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| US9330671B2 (en) | 2016-05-03 |
| CN102177542A (zh) | 2011-09-07 |
| JP5608660B2 (ja) | 2014-10-15 |
| JP2012505429A (ja) | 2012-03-01 |
| EP2345027B1 (de) | 2018-04-18 |
| WO2010042024A1 (en) | 2010-04-15 |
| US20110224994A1 (en) | 2011-09-15 |
| EP2345027A4 (de) | 2016-10-12 |
| EP2345027A1 (de) | 2011-07-20 |
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